Schneider Electric Telemecanique ZCK-D21 Limit Switch

The Schneider Electric Telemecanique ZCKD21 Limit Switch Head (Part Number ZCKD21) is a thermoplastic roller lever plunger head designed for XC Standard limit switch bodies, specifically XCKM and XCKL series, to deliver reliable end-of-travel sensing in industrial automation. This head uses a lateral, one-direction actuation with a 30° cam, a spring-return mechanism, and positive opening, with movement of the operating head described as linear/rotary and a head material of thermoplastic, weighing about 0.085 kg. Common applications include machine tools, conveyors, packaging machinery, material handling equipment, and automated production lines for end-of-travel detection, machine sequencing, and position monitoring.